Pump



Jan. 1, 1929.

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2 Sheets-Sheet Jan. l, 1929.

C. B. MARTIN PUMP 2 Sheets-Sheet 2 Original Filed Oct. 2, 1923 www w rwqmvu 037.8 5 056. D. O

' atroz 'w q Patented Jan. l, 1929.

UNITE; STATES PATE CHARLES iB. 'MAR'.lm, 0F BARTLESVILLE, '-OKLAEIOMlA..

PUMP.

Application filed October 2, 1923, Serial No. r666,114. 'Renewed` May 1, 17928. A v

This invention .relates .to pumps and .more particularly to well pumps. I l

The primary object of vthe linvention i-s to provide a double actingdeep well pump designed to raise about 70% more liquid .from a "deep well than the ordinary single acting Alfurther objectof ythe invention is to provide a deep well'pump constructed to permit the .removal ofthe parts in two operations.

Another object of `the .invention is .to furnish adeep well pump consisting mainly of tubing, ball valves and packing, and con structed to permit ready assembling ordismantling of the parts to facilitate repairing or replacements.

With the foregoing objects outlined and with other objects in viewv which willappear as the description proceeds, the invention consists in the lnovel features hereinafter dcscribed in detail, illustrated in the accompanying drawings and more particularly pointed out in the appended claims.

Referring t-o the drawings:-

Figure 1 is a longitudinal sectional view `of Vthe improved pump illustrated in the position which it occupies in a well casing.

Fig. 2 is an enlarged vertical sectional view of the upper portion of the pump.

Fig. 3 is a similar view of the intermediate portion of the pump.

Fig. 4 is a similar view of th-e lower portion of the pump.

Fig. 5 is a horizontal sectional viewtaken on the line 5-5 of Fig. 4.

Fig. 6 is a similar view taken on line 6-6 of Fig. 2.

Fig. 7 is a horizontal sectional view taken on iine 7-7 of Fig. 4. y y y Referring to Figs. land 4, the lower portionof the pump consists of an ordinary` gas vanchor 1 having internal threads at its upper end connected to external threads at the lower end of the pump casing 2. Arranged within the lower portion of ythe casing 2 -is a stand valve housing 3 having, as shown in Figs. 4 and 7, a plurality of longitudinally extending peripheral grooves or channels 4 which extend upwardly from the lower rend 5 of the housing'to ports 6 arranged near the upper end of said housing. These ports lead into the bore 7 ofthe housing. Longitudinally extending vperipheral grooves or channels 8 also extend downwardly from the uppeiend 9 of the lhousing to ports 10 arranged near the lower end ofthe housing,.and lthese ports lead into an .annular Vchamber 11 :acominuiiicating with :the `bore 7 of :the housing. i

Thesech annels and :ports are .adapted ;to convey the liquid pumped, in .amaiiner hereimafter described.

The bore .7 extends entirely .through .the housing 3 and is provided .at its ,lower .end with .a conical ,surface 12 .to V receive :a .correspondingly shaped inut 13 v`screwed .on the lowereiid of a short .pipe 14. Theconical surface 12 limits zthedownward movement of Athe nut 13 andof the pipe 141to whichsaid nut is threaded.

Packingrings 15 surround lthe'pipe 14, rest on `the nut 13 and prevent .the :passagepf liquid between `the bore .7 andthe pi e 114, at the place where the pipe 14 Yis .locate ranged abovetlie pipe 14 isa tube 16 having internal threads at its lower end which -engage external `thr-eads at the .upper yend of the pipe -l4. rThe tube 16 .has an internal shoulder 17 against which a valve ,seat 118 is forced by the upper Lend .of the pipe 1 4.

The tube 16 houses arball valve 19and isprovided with ports V2() communicating with ythe annularchamber 11.- At `this lpoint it `will Lbe .noted that liquid passing up .the pipe 14 displaces the valve 19 and passes through `,the ports 20aiid 10 into thechannels.or,grooves.8.

A con'duit21 is .arranged above the tube 16 and has a so'lid extension 22 :at .its lower .end Kprovided :with lexternal .threads xconnected 4to internal threads yon the tube 16. The solid extension 22 .preventsliquid from .passing from the interior of the `tube 16 Vtogthe interior of the conduit 21. .Said yconduit is provided with .a plurality of outwardly extend- .ing annular flaiiges23and24 which forman annular-.groove 25 .on tthe conduit ,adapted .to communicate with .thejports ,the housing and ports 26 in ithe conduit. Packing rings .27 iare arranged ,between the upper end of the `tube 16 :and the shoulder 24.and function to prevent `thefpassage .of liquid from the chamber 1 1 -to the groove25. rlihe .upperend -portion of .the conduit 21 supports .a -valve 4seat 28 which is .clamped in position .a

valve cage 29 ,in threaded engagement with the con'duit21. r:The valve `cage encloses a ball valve 30 rand is provided with radially arranged elongated slots 31 .an-d .a .threaded aperture 32, .for purposes hereinafter described.

The upper end of Athebore 7 of the'housing has internal :threads which Vareconneoted to the external threads at the .lower .endof .a

, nut 44 at the lower end of the sleeve.

pump barrel 33. As best shown in Figs. 1, 2 and 3, this pump barrel extends upwardly and has external threads at its upper end secured to a ring 34, see particularly Fig. 2. Inthis figure 1t will be also seen that the barrel is provided near its upper end with a number y The barrel is provided near its upper end and above the ports with internal annular f grooves 38 which receive packing rings 39.

The eXtreme-upper end of the barrel has an internal conical socket 40 in frictional engagement with a conical head 41 provided at the upper end of a sleeve 42. This sleeve has -a. shoulder 43, and the packing rings 39 are forced towards this shoulder. by means of a y At this time it is to be noted that when pressure is ei;- erted on the lower end of the sleeve 42 and on the nut 44 in an upward direction the nut 44 l ton. The pump rod 45 extends upwardly through a valve member 50, see Fig. 2, and the` rod slides through this member in the operation of the pump. The member 50 consists oi a short section of pipe having a threaded head 51 which forces a spring 52 in the pipe against packing glands 53 that beai` on packing rings 54. The lowermost packing ring bears against a packing gland 55 vwhich in turn rests on a ring 56 having radially disposed apertures 57, only one of which is shown in the drawing, but in the actual construction illustrated, there are three "oi' these recesses 57 equally spaced around the ring `56. Arranged below the ring 56 is a screw head 58 having a valve head 59 at its lower end. This valve head is preferably formed of leather or the like and is adapted to seat on they head 41 of the sleeve 42v in order to close ports 60 which extend through said head and communicate with the interior chamber`36 of the pump barrel 33. In operation, it is to be understood that the pressure of the liquid passing upwardly through the ports 60 intermittently moves the member 50 and its connected parts upwardly in order to open the ports 60 and permit the liquid to pass from the chamber 36 into a chamber 61 surrounding the l member 50. For the purpose of moving the member 50 downwardly toward the head 41, a

Ypluralityof screws 62'extend through the nut 58 and into the head 41. Eachone vof these screws is surrounded by a spring 63 which pushes against the head of the screw and against the nut 58. y These screws are equally spaced around the nut 58 as shown in Fig. 6

and their springs 63 will push the member 50 f with the valve head 59 toward the head 41 in order to closethe ports 60.

In the construction shown in the drawing, which is in practical operation, the annular ring 34 is threaded to the lower end of a casing 'extension 64 that is welded at 65 to the upper end of the pump casing 2. The upper end or' this extension is reduced in size and is connected by a threaded collar 66 to' the lower end of the pump tubing 67, through whlilch the liquid is forced to the 'top of the we As best shown in Fig. 2, the upper end of the pump rod 45 is in threaded engagement with a nipple 68 which supports a valve seat 69 heldin place by a slotted valve cage 70 that houses a ball valve 71 and is provided at its upper end with a threaded stud A72, the latter being adapted to be connected to any form of operating rod, not shownv in the drawings.

In using the pump, the gas anchor 1, casing 2, housing 3, pump barrel 33, casing extension 64, collar 66 and pump tubing 67 are to be arranged permanently in the well and the stand valve at the lower end of the pump may be first inserted into the housing 3, after which the pump rod carrying the member 50, the piston 46 and sleeve 42 may be dropped into the well. f

In operation, the pump rod 45 is reciprochannel 8, chamber 37 and through ports'35 into the chamber 36. At the same time liquid which has previously been drawninto the chamber 73 of the barrel, below the piston,

will be forced upwardly through thevhollow piston 46, pump rod 45, past the ball valve 71 through the slots of the cage 70 and into 4the well tubing 67 It will thus be seen that on the downward strokefof the pump, liquid will be forced upwardly through the tubing 67. Then at the commencement of the up- -ward stroke, theJ rising of the piston 46 will tend to create a vacuumy in the chamber 73, thus seating the ball valve 71 and at the same time raising or unseating the ball valve 30, so that liquid will pass upwardly through the channels 4, ports 6, groove 25, ports 26 and the slots 31 into the chamber 7 3; At the same time the liquid whichwas drawn into the chambers 36 and 37 on the downward stroke is placed under pressure and this pressure causes the valve 19 to close the pipe 14. Therefore as the liquid cannot escape through the pipe 14 it must pass up through the sleeve 42 and ports 60 and it will exert suicient pressure on the valve 59 to lift the member 50 and permit the liquid to flow upwardly through the chamber 61 into the tubing 67 of the pump. lt will thus be seen that both on the down stroke and up stro-ke of the piston, liquid is drawn in and forced out of the pump and into the. pump tubing 67, and it has been found from actual practice that this pump forces about 70% or more liquid than a single acting pump of the same size.

Vhen it is desired to Withdraw the parte from the casing, the sucker rod is raised and this Will cause the pump rod 45 to rise, and as the latter moves upwardly, the upper end of the piston 46 will strike the lower end of the sleeve 42 and the nut 44, so that the sleeve, nut and packing 39 will rise with the piston. After these parts have been dra-wn to the top i of the well, a fishing rod may be inserted and its lower threaded end may be threaded into the socket 32 of the stand valve, and when the fishing rod is raised, the entire stand valve will also be elevated.

From the foregoing it is believed that the construction, opera-tion and advantages of the invention may be readily understood by those skilled in the art, and it is apparent that changes may be made in the details'disclosed without departing from the spirit of the invention as expressed in the claims.

What is claimed and desired to be secured by Letters-Patent is:

1. A pump including a casing provided at its lower end with a stand valve structure, a barrel arranged in said casing and extending to said stand valve struct-ure, said stand valve including a plurality of valves for controlling the admission of fluid into the interior of said barrel and to the chamber between the barrel and casing, ports provided in the upper portion of the barrel and placing the interior of the barrel in communication with said chamber, a hollow pumprod having a piston arranged in said barrel, means closing the space between the pump rod and the upper end of said barrel andprovided with ports to permit the passage of fluid from the interior of the barrel to the upper portion of the casing, a sliding valve normally closing the last mentioned ports, and a valve associated with the pump rod for controlling the passage of fluid through the latter, the upper end of said barrel being provided with an internal conical surface, the means closing the space between the upper end o-f the barrel andthe pump rod being provided with a corresponding surface to permit the Withdrawal of said means from the barrel when the piston is raised, said means including a sleeve provided with a head, a nut arranged on said sleeve, and packing surrounding the sleeve and bearing against the inner surface of said barrel.

2. A pump as claimed in claim 1 in which the sliding valve is connected to the means closing the space between the barrel and pum) rod, by rods surrounded by springs tending to force the sliding valve toward the ports which it controls.

3. A pump as claimed in claim 1 in which the sliding valve consists of a sleeve having closed ends, packing rings arranged in the sleeve and bearing against said pump rod, a spring in the sleeve bearing on said packing rings, and yielding means connecting the sliding valve to the means closing the space between the pump rod and said barrel.

In testimony whereotI I affix my signature.

CHARLES B. MARTIN.

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